Maxuino

Hi, im using a Arduino Mega 2560, via arduino i updated a STANDARD FIRMATA, and then i use a the maxuino tester, with a led, but, in the tester they show me only 13 outputs, and 0 and 1 outs are Rx and Tx

Acordding Arduino the mega 2560 had like 50 outputs, can someone give me a patch with more outputs, even 0 and 1